 namespace local = ""
 namespace inh = inherit
 
 start = element library { library-content }
 
 library-content = book-element+
 
 library-content &= attribute name { text }
 
 author-element = 
    element author
    {
       attribute id { text },
       name-element,
       born-element,
       dead-element?
    }
 
 book-element = 
    element book
    {
       attribute id { text },
       attribute available { text },
       isbn-element,
       title-element,
       author-element*,
       character-element*
    }
 
 born-element = element born { text }
 
 character-element = 
    element character
    {
       attribute id { text },
       name-element,
       born-element,
       qualification-element
    }
 
 dead-element = element dead { text }
 
 isbn-element = element isbn { text }
 
 name-element = element name { text }
 
 qualification-element = element qualification { text }
 
 title-element = element title { attribute xml:lang { text }, text }
